I've used pfSense several times to have a (semi-)pro grade router/firewall at an entry level price. For me it strikes a nice balance between power and ease of configuration. Even though personally I don't care too much about most advanced features, I like how there are no arbitrary limitations, and it's good to know that the underlying technology is solid and inspectable/tweakable if needed. And yes, I do buy new hardware for it without hesitation; the PC Engines APU is very well-suited. This way $200 can get you a better solution than $600–$800 off-the-shelf.